    <SEC-DOCUMENT>0001213900-23-035988-index.html : 20230503
    <SEC-HEADER>0001213900-23-035988.hdr.sgml : 20230503
    <ACCEPTANCE-DATETIME>20230503161732
    ACCESSION NUMBER:		0001213900-23-035988
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		24
    CONFORMED PERIOD OF REPORT:	20230427
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20230503
    DATE AS OF CHANGE:		20230503

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SIEBERT FINANCIAL CORP
    		CENTRAL INDEX KEY:			0000065596
    		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
    		IRS NUMBER:				111796714
    		STATE OF INCORPORATION:			NY
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-05703
    		FILM NUMBER:		23884230

    	BUSINESS ADDRESS:
    		STREET 1:		120 WALL STREET
    		STREET 2:		25TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10005
    		BUSINESS PHONE:		212-644-2400

    	MAIL ADDRESS:
    		STREET 1:		120 WALL STREET
    		STREET 2:		25TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10005

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MICHAELS J INC
    		DATE OF NAME CHANGE:	19950221
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>ea177556-8k_siebert.htm
    <DESCRIPTION>CURRENT REPORT
    <TEXT>
    Document 1 - file: ea177556-8k_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.28
    <SEQUENCE>2
    <FILENAME>ea177556ex10-28_siebert.htm
    <DESCRIPTION>FIRST TRANCHE STOCK PURCHASE AGREEMENT
    <TEXT>
    Document 2 - file: ea177556ex10-28_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.29
    <SEQUENCE>3
    <FILENAME>ea177556ex10-29_siebert.htm
    <DESCRIPTION>SECOND TRANCHE STOCK PURCHASE AGREEMENT
    <TEXT>
    Document 3 - file: ea177556ex10-29_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.30
    <SEQUENCE>4
    <FILENAME>ea177556ex10-30_siebert.htm
    <DESCRIPTION>FOREIGN BROKER-DEALER FEE SHARING AGREEMENT
    <TEXT>
    Document 4 - file: ea177556ex10-30_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.31
    <SEQUENCE>5
    <FILENAME>ea177556ex10-31_siebert.htm
    <DESCRIPTION>SUPPORT AND RESTRICTIVE COVENANT AGREEMENT
    <TEXT>
    Document 5 - file: ea177556ex10-31_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.32
    <SEQUENCE>6
    <FILENAME>ea177556ex10-32_siebert.htm
    <DESCRIPTION>SUPPORT AND RESTRICTIVE COVENANT AGREEMENT
    <TEXT>
    Document 6 - file: ea177556ex10-32_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.33
    <SEQUENCE>7
    <FILENAME>ea177556ex10-33_siebert.htm
    <DESCRIPTION>SUPPORT AND RESTRICTIVE COVENANT AGREEMENT
    <TEXT>
    Document 7 - file: ea177556ex10-33_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.34
    <SEQUENCE>8
    <FILENAME>ea177556ex10-34_siebert.htm
    <DESCRIPTION>SUPPORT AND RESTRICTIVE COVENANT AGREEMENT
    <TEXT>
    Document 8 - file: ea177556ex10-34_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.35
    <SEQUENCE>9
    <FILENAME>ea177556ex10-35_siebert.htm
    <DESCRIPTION>SUPPORT AND RESTRICTIVE COVENANT AGREEMENT
    <TEXT>
    Document 9 - file: ea177556ex10-35_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.36
    <SEQUENCE>10
    <FILENAME>ea177556ex10-36_siebert.htm
    <DESCRIPTION>SUPPORT AND RESTRICTIVE COVENANT AGREEMENT
    <TEXT>
    Document 10 - file: ea177556ex10-36_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.37
    <SEQUENCE>11
    <FILENAME>ea177556ex10-37_siebert.htm
    <DESCRIPTION>SUPPORT AND RESTRICTIVE COVENANT AGREEMENT
    <TEXT>
    Document 11 - file: ea177556ex10-37_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.38
    <SEQUENCE>12
    <FILENAME>ea177556ex10-38_siebert.htm
    <DESCRIPTION>STOCKHOLDERS' AGREEMENT
    <TEXT>
    Document 12 - file: ea177556ex10-38_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.39
    <SEQUENCE>13
    <FILENAME>ea177556ex10-39_siebert.htm
    <DESCRIPTION>REGISTRATION RIGHTS AND LOCK-UP AGREEMENT
    <TEXT>
    Document 13 - file: ea177556ex10-39_siebert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>14
    <FILENAME>sieb-20230427.xsd
    <DESCRIPTION>XBRL SCHEMA FILE
    <TEXT>
    Document 14 - file: sieb-20230427.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>15
    <FILENAME>sieb-20230427_lab.xml
    <DESCRIPTION>XBRL LABEL FILE
    <TEXT>
    Document 15 - file: sieb-20230427_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>16
    <FILENAME>sieb-20230427_pre.xml
    <DESCRIPTION>XBRL PRESENTATION FILE
    <TEXT>
    Document 16 - file: sieb-20230427_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>17
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 17 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>18
    <FILENAME>ea177556-8k_siebert_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 18 - file: ea177556-8k_siebert_htm.html

    Document 18 - RAW XML: ea177556-8k_siebert_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>19
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 19 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>20
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 20 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>21
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 21 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>22
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 22 - file: FilingSummary.html

    Document 22 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>24
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 24 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>25
    <FILENAME>0001213900-23-035988-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 25 - file: 0001213900-23-035988-xbrl.zip

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